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合成了一系列长链烷基锍脲类衍生物，用作阴离子选择电极的新型载体，其中以十六烷基丙烯基锍脲苦味酸盐为载体的ＰＶＣ膜电极性能最佳，线性范围为１．０×１０－２～３．９×１０－７ｍｏｌ／Ｌ，检测下限为２．７×１０－７ｍｏｌ／Ｌ苦味酸根离子。测试了电极的选择性，并用十八烷基苯基锍脲苦味酸根电极电位滴定小蘖碱。
A series of long chain alkyl sulfonium urea derivatives were synthesized and used as a novel carrier for anion selective electrode. The best performance of PVC membrane electrode with hexadecyl acrylsulfonium urea picrate as carrier was obtained. The linear range was 1 .0 × 10-2 ~ 3.9 × 10-7mol / L, the detection limit of 2.7 × 10-7mol / L picric acid ion. The electrode selectivity was tested and the concentration of berberine was titrated with octadecyl phenylsulfonium urea picrate electrode potential.